S
M
T
W
T
F
S
26
61°
36°
27
70°
39°
28
70°
42°
29
64°
52°
30
59°
43°
1
55°
38°
2
54°
39°
3
56°
43°
4
61°
44°
5
67°
49°
6
66°
48°
7
67°
46°
8
66°
46°
9
63°
48°
10
63°
45°
11
64°
44°
12
64°
48°
13
65°
48°
14
65°
45°
15
64°
45°
16
63°
46°
17
62°
45°
18
64°
45°
19
69°
51°
20
67°
47°
21
66°
46°
22
67°
47°
23
66°
46°
24
67°
49°
25
69°
55°
26
72°
51°
27
67°
49°
28
68°
49°
29
70°
54°
30
77°
57°
31
77°
53°
1
75°
56°
2
78°
59°
3
80°
59°
4
80°
58°
5
79°
52°
6
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Middletown
Middletown's May 2026 forecast shows daily high temperatures ranging from 54° to 80°, with overnight lows between 36° and 59°. The average high for May is 67° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Middletown. See also: June | July | August.
